Rigid Motions Transformations Review Question Preview (ID: 57072)
Translations, Reflections, Rotations.
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what is a translation?
a) flip
b) turn
c) slide
d) same shape
What is rotational symmetry
a) Symmetry that looks the same after a number of rotations
b) a symmetrical circle
c) a shape that has even sides
d) something that is not symmetrical
The point P (-5, -10) is rotated 180° about the origin. What are the coordinates of P'?
a) (10, 5)
b) (-10, -5)
c) (5, -10)
d) (5, 10)
Square ABCD has vertices, A (-2,2), B(2,2), C (2,-2), D (-2,-2), What would be the coordinates of point C with a reflection across the X-axis?
a) (1, 1)
b) (-2, 2)
c) (1, 2)
d) (2 ,2)
How many lines of symmetry does a square have?
a) 4
b) 8
c) 2
d) 3
A regular pentagon has ______ lines of symmetry?
a) 2 lines of symmetry
b) 6 lines of symmetry
c) 5 lines of symmetry
d) 4 lines of symmetry
A transformation in which the figure is moved such that ever point is equidistant from the pre-image
a) Rotation
b) Translation
c) Reflection
d) Dilation
A transformation is described by f(x, y) = (-y, x). What would be the preimage of (6, -2)?
a) (2, -6)
b) (-2, -6)
c) (-6, -2)
d) (-6, 2)
What is the image of (2,4) after it has been rotated 90 degrees about the origin?
a) (-4,2)
b) (4,2)
c) (-2,4)
d) (4,-2)
If A(-3,-6) is transformed to create A'(-6,-3), which is the rule that was used?
a) Reflection over the line y=x
b) Rotation of 180 degrees
c) Reflection over the y-axis
d) Rotation of 90 degrees clockwise
Which of the following does NOT create an isometry?
a) reflection over y=x
b) translation 8 spaces left and two spaces up
c) rotation of 75 degrees about the origin
d) enlargement with a scale factor of 2
Write a rule to describe the transformation shown.
a) reflection across the line y=2
b) translation 4 units down
c) 180 degree rotation about the origin
d) 90 degree counterclockwise rotation about the origin
Reflection over the y-axis:
a) the x value changes to its opposite, the y value stays the same.
b) the y value changes to its opposite, the x value stays the same.
c) both x and y values change to their opposites.
d) neither value changes.
Write a rule to describe the transformation shown.
a) reflection across y=x
b) reflection across the y-axis
c) reflection across y=-1
d) reflection across x=-1
What is the order of rotational symmetry, and angle of rotation, for the recycling symbol shown?
a) two; 180 degrees
b) three; 120 degrees
c) three; 60 degrees
d) six; 60 degrees
Write a rule to describe the transformation from H(-5,-1), I(-4,3), J(0,0) to H'(-4,-2), I'(-3,2), J'(1,-1).
a) (x,y) translates to (x+1,y-1)
b) (x,y) translates to (x,y-2)
c) (x,y) rotates to (-y,x) then translates up one unit
d) (x,y) reflects to (y,x) then rotates 90 degress
How many lines of symmetry does a regular dodecagon have?
a) 12
b) 10
c) 20
d) 6
Identify the center of the rotation that maps ABC onto A'B'C'.
a) W
b) X
c) Y
d) Z
Find Q''' if point Q is reflected over the x-axis, then rotated 90 degrees, and then translated right 3 up 4.
a) (-3,1)
b) (4,1)
c) (4,-1)
d) (-3,-1)
What type of symmetry does this image have?
a) Both rotational and line symmetry
b) Only line symmetry
c) Only rotational symmetry
d) None
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